52115565 has 8 divisors (see below), whose sum is σ = 83384928. Its totient is φ = 27794960.

The previous prime is 52115561. The next prime is 52115579. The reversal of 52115565 is 56551125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52115565 - 2² = 52115561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52115561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1737171 + ... + 1737200.

It is an arithmetic number, because the mean of its divisors is an integer number (10423116).

Almost surely, 2^52115565 is an apocalyptic number.

It is an amenable number.

52115565 is a deficient number, since it is larger than the sum of its proper divisors (31269363).

52115565 is a wasteful number, since it uses less digits than its factorization.

52115565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474379.

The product of its digits is 7500, while the sum is 30.

The square root of 52115565 is about 7219.1110948648. Note that the first 3 decimals coincide. The cubic root of 52115565 is about 373.5274160041.

The spelling of 52115565 in words is "fifty-two million, one hundred fifteen thousand, five hundred sixty-five".